Home / 1,645.34-2,269.88-1,086.44

Finding the Fourth Proportional to 1,645.34, 2,269.88 and 1,086.44

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Solution

The fourth proportional to 1,645.34, 2,269.88 and 1,086.44 is: 1,498.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.34 : 2,269.88 = 1,086.44 : x
  2. Step 2: Convert to fraction form
    1,645.34/2,269.88 = 1,086.44/x
  3. Step 3: Cross multiply
    1,645.34x = 2,269.88 × 1,086.44
  4. Step 4: Simplify right side
    1,645.34x = 2,466,088.43
  5. Step 5: Solve for x
    x = 2,466,088.43/1,645.34
  6. Step 6: Final answer
    x = 1,498.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.